X21S Digital Display Wireless Earphone Bluetooth 5.0 In-ear Earbud- Black

X21S Digital Display Wireless Earphone Bluetooth 5.0 In-ear Earbud- Black

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Main Features:
?Automatic startup
Start pairing, immediately complete the connection, listen to music, just pick up the earphone, and phone and another equipment pairing, immediately connect in place, back to the original intention of music appreciation
?Bluetooth 5.0 and stable connection
Bluetooth 5.0 stereo earplug, built-in high-quality audio chip, the latest Bluetooth 5.0 technology, ensure excellent audio performance, fast transmission speed, stable and efficient
?HD dialogue
DSP noise reduction technology is coordinated with sensitive microphones to identify speech and environmental noise, reduce noise and improve speech clarity
?Ultra-low audio latency
Chipsets, now capable of not only playing and talking but also playing games in an efficient transmission range. Ultra-low audio latency
?High fidelity sound quality
Innovative titanium plating with diaphragm, more accurate processing music. Bring rich bass and delicate treble. Bluetooth headsets also have good sound quality

Specifications
Bluetooth version: Bluetooth V5.0 + EDR
Bluetooth protocol: a2dp / avctp / avdtp / avrcp / HFP / SPP / SMP
Frequency: 2402 MHz to 2480 MHz
Modulation system :GFSK / DQPSK
Maximum output power: 4W
Fosc: 24MHz
CPU frequency: 96 MHz
Power supply: DC 2.2V to 5.5V
Signal to noise ratio :more than 92 dB
Effective distance :10m without obstacles
Frequency response :20Hz - 20KHz
Sensitivity: 98dB
Nominal resistance: 32 ohm
Transmission power: level 2
Battery capacity: 50mAh
Power supply :5V / 500mA
Charging time: about 1 hour
Service time: talk for 8 hours and play music for 5 - 8 hours
Standby time :10 - 15 days
Not included the ropes in the pictures
Specification

General

Earphones type: Hands-free
SKU: GB39977

Shipping Details

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Sold & shipped by Yunfu Hongrui (Direct Import)

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Reference ID: 5519187

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